Support setting img[alt] on ManagedAttachment
#1198
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Extend the `PreviewableAttachmentView` to assign
[HTMLImageElement.alt][] based on the `Attachment` instance's `"alt"`
attribute.
This enables applications to set the [preview image's alt text][4.8.4.4]
while editing inside the `<trix-editor>` element. For example, an
application can modify a `ManagedAttachment` instance through a
`trix-attachment-add` event listener:
```js
addEventListener("trix-attachment-add", ({ attachment }) => {
attachment.setAttributes({ alt: `Attached file ${attachment.file.name}` })
})
```
[HTMLImageElement.alt]: https://developer.mozilla.org/en-US/docs/Web/API/HTMLImageElement/alt
[4.8.4.4]: https://html.spec.whatwg.org/multipage/images.html#alt
|
@brunoprietog are you able to review this change? |
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Extend the
PreviewableAttachmentViewto assignHTMLImageElement.alt based on the
Attachmentinstance's"alt"attribute.This enables applications to set the preview image's alt text while editing inside the
<trix-editor>element. For example, an application can modify aManagedAttachmentinstance through atrix-attachment-addevent listener: